000 00272nam a2200133Ia 4500
100 _aBagchi, Kalyan
365 _b50
942 _cBK
654 _a
245 _aPublic Health
260 _aNew Delhi
_bAcademic Publishers
_c1986
082 _a613.2
300 _bPb
_a213
999 _c403322
_d403322
041 _aeng